| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a double wall cooling structure capable of restraining decline of the cooling efficiency and a combustor. <P>SOLUTION: The double wall cooling structure comprises an outer wall part 20 with a plurality of impingement cooling holes 21 formed, and an inner wall part 30 disposed with a clearance S provided with respect to the outer wall part 20. A projection part 32 is provided in the clearance S projecting from the inner wall part 30 toward the outer wall part 20 at a portion other than a position facing the impingement cooping holes 21. The projection part 32 is formed integrally with the inner wall part 30 so that the projection part 32 is formed in a plurality side by side with an interval provided with each other on a straight line on the inner wall part 30. <P>COPYRIGHT: (C)2012,JPO&INPIT |
